Add instructions to build and boot from QSPI Flash.
Signed-off-by: Mamta Shukla mamta.shukla@leica-geosystems.com Signed-off-by: Thomas Haemmerle thomas.haemmerle@leica-geosystems.com --- doc/board/nxp/imx8mm_evk.rst | 38 ++++++++++++++++++++++++++++++++++-- 1 file changed, 36 insertions(+), 2 deletions(-)
diff --git a/doc/board/nxp/imx8mm_evk.rst b/doc/board/nxp/imx8mm_evk.rst index b9e67b954f..ea7153a69b 100644 --- a/doc/board/nxp/imx8mm_evk.rst +++ b/doc/board/nxp/imx8mm_evk.rst @@ -35,8 +35,8 @@ Get the ddr firmware $ ./firmware-imx-8.9 $ cp firmware-imx-8.9/firmware/ddr/synopsys/lpddr4*.bin $(builddir)
-Build U-Boot ------------- +Build U-Boot for sd card +--------------------------
.. code-block:: bash
@@ -53,3 +53,37 @@ Burn the flash.bin to MicroSD card offset 33KB: Boot ---- Set Boot switch to SD boot + +Build U-Boot for qspi flash card +------------------------------------ + +.. code-block:: bash + + $ export CROSS_COMPILE=aarch64-poky-linux- + $ make imx8mm_evk_fspi_defconfig + $ make + +Currently, there is no direct support to write to QSPI Flash. +Copy flash.bin to ${loadaddr} either from sd card or over network and then copy to +qspi flash + +From sd card to memory + +.. code-block:: bash + + $mmc dev 1 + $mmc read ${loadaddr} 0x00 <size_of_flash.bin/512> + +.. code-block:: bash + + $ sf probe + $ sf erase 0 <size_of_flash.bin_in_hex> + $ sf write $loadaddr 0x00 <size_of_flash.bin_in_hex> + +Boot from QSPI Flash +----------------------- +Set Boot Switch to QSPI Flash + +Pin configuration for imx8mm_revC evk to boot from qspi flash +SW1101: 0110xxxxxx +SW1102: 00100x0010